How To Quiet Differential Whine

i just recently changed the diff fluid and added the additive as well. We found that most of the noise was coming from the center diff. Don't know that its a diff noise. My diff was installed in 1 day. It is a concentrated moly based treatment for manual shift transmissions, differentials, steering boxes, transaxles, and rear axles. What I had been almost willing to bet was drive train noise, specifically diff noise, proved to be all tire noise. I have an 01 F-150 5 Speed and I can hear this whine coming from the rear end when I am pushing on the accelerator. Average repair cost is $3,200 at 70,000 miles. I originally replaced the diff fluid with Amsoil 75w140 and the noise was greatly subdued at some speeds, and eliminated at other speeds. • "Rumbling or whirring" at speeds over 20 mph can be caused by worn carrier bearings. However, the whine is loud enough to be heard over the radio and AC. I noticed a speed-dependent whining sound coming from the rear of the car over the last week. 30 problems related to differential unit have been reported for the 2004 Cadillac CTS. I had a jeep that made similar noise at higher speeds and it was the rear piñon bearing going but I'm not quit sure on this one. Whining Differential or Transmission One of the symptoms most commonly associated with bad or failing differential or gear oil is a noisy transmission or differential. You can barely hear it during times of acceleration or on the highway going 70 mph. The pinion seal dribbles a little. fluid was drained and filled with ATF, who know how long its been running like that bu previous owner. Whining noise from the rear differential when driving. Mine used to whine up to 50 mph then I couldn't hear it above the road noise. How to rebuild your BMW differential and stop it being noisy 18 November 2014 · My BMW M3 E90 rear differential makes a "whining" noise at between 40 mph and 50 mph in any gear. Whining noise - Engine revs dont seem to effect it, its purely road noise and starts from 10mph! It does seem to be on the driver side rear, which would point to it being a bearing. Examine The Transmission. Hey mate I had a really bad whine coming from my diff. Audi A6 C5: What Is This Front End Rotating Grinding Noise? Hearing a grinding noise can be very worrying, and there are a lot of potential reasons for it. Any ideas would be greatly appreciated. From there you'll know whether or not to pull the axle that the noise is coming from and replace that bearing (which is the easiest) or if it's in the center then pull the cover. Someone told me I can "shim" it and it would take care of the whining noise and others say that it won't and I will need to rebuild it. And its not the CVT, when I replaced my clutch I started it up with the CVT cover off to look at the clutches operate and there was very little noise from the two clutches. they claim the rear diff can make that noise if the breather tube has an issue of the diff oil is almost gone. I had my mechanic take a drive and listen to the noise and he thought it may be coming from the diffential. Either way if its diff or gearbox they will have to come out for a recon. I don't hear "any" type whine (maybe a "whirring" noise ) and I'm extremely sensitive about any noise, especially "whines. Hate to admit it but this after driving who knows how many miles with Pirelli tires on my Boxster and every time I replaced all 4 tires noting how remarkably quiet the car became. What else could cause this noise? The related to speed and not power is stumping us. I noticed one other person had this problem, but I am curious do others have a slight whine? It is quiet, but sharp and high pitched. I even brought it back a second time after the bearings were replaced and everything was adjusted to the proper specs. 3 4907 tmaxx and I have began to notice a whistle/whining noise when accelerating. Is a differential rebuilding an option or should I just live with the noise. BMW 135i Differential Hum/Whine from BMW Ihaveone on Vimeo. The noise is commonly described as a whining, humming, roaring or growling noise. Just recently my transmission started whining. It goes down the road just fine but the whining in rear end is enough to drive you crazy. NOTE REFER TO THE "DIFFERENTIAL RING AND PINION" IN-VEHICLE REPAIR PROCEDURE IN THE ONLINE WORKSHOP MANUAL SECTION 205-00, FOR THE LATEST AXLE DIAGNOSIS AND REPAIR PROCEDURES. The noise may change while cornering or turning. Low fluid levels are usually the cause of the irregular wear. Transmission Whine Noise from 0-40 MPH Repair Procedure 1. I got the same noise too. Open up the top plug on your diff case and funnel this stuff in. When I turn right while driving I sometime hear a humming or whining noise. put truck on jackstands so it's not tires any guess ?. I think the auto trany diff. Begin by setting proper pinion bearing preload, total turning preload, and ring gear backlash. I know it sounds ridiculous, with rocks being less than quiet when banded together etc. The sound level can bring minor annoyance, or foretell serious part failure. I have a E class W211 with 75,000 Km (47,00 miles) and the Differential Drive Gear Box is giving a whining noise. It is more noticeable with the top down for sure. When the drive line is not in there is no noise. Noise: Howl while decelerating (gears previously quiet) Cause: Loose pinion bearing preload. This is a 50g tube of Gear oil additive. Inspect the contact patterns on the ring gear teeth. good day to everyone i just got my jeep last month and been wondering what's the whining noise when accelerating at 100kph and its gets louder until i reach 140kph it stops. Examine The Transmission. Plan to keep this ute and work on it so will replace the diff, but until then what additives are available I could add to a thick gear oil that would reduce. A differential usually makes a whining noise (much like the ex ) that increases in pitch with speed. Ever since the CTS-V was introduced in 2004, owners have reported rear differential problems and failures. The noise when coasting only, would tend to me, to suggest something like a drive shaft CV joint or a propeller shaft bearing. It also helps to quiet noise and reduce vibration that may develop in differentials and limited slip rear axles, thereby extending the life of the differential and axle before replacement or rebuilding is needed. I'm thinking Pinion bearing. Re: Rear End Whining Usually a rear axle will whine on the pull if the gear mesh is not right. it is not the actual diff making the noise, it is the nut on the pinion gear. With the windows up and going 55 I can hear a slight whine from the rear end over the wind and exhaust noise. It's only like $40 at Honda, or you can just easily do it yourself. The whining is constant as you maintain a constant speed but it has "dips" in the frequency like if the noise comes from something that isn't 100% even. contents of tube sufficient additive for up to 2. What I had been almost willing to bet was drive train noise, specifically diff noise, proved to be all tire noise. Noises that originate in a differential can travel up driveshafts and across axles, confusing diagnostic efforts. Anyway, I am very happy with the new diff. I get it, nothing is perfect. Differentials are very costly to repair on vehicles, yet; usually relatively simple to change their fluid and inexpensive to service. In regards to the whine heard on acceleration what I think and also what the generally census is, it's the belt being to tight and so they say after 1500 to 2000 miles belt will stretch some and noise will reside. I took my car to my dealer (which is also a high performance SRT shop) and they replaced the entire rear end after the tech and I took it for a spin and he heard it himself. However, the whine is loud enough to be heard over the radio and AC. Noise has increased in volume of late. Ever since the CTS-V was introduced in 2004, owners have reported rear differential problems and failures. Whining noise in drivetrain (1999 Chevrolet Silverado 1500) i have a whining noise in the drive train when going 30 mph or higher all fluids are ok , trans shifts ok 4 wd works ok ,can't figure out what is making the noise. Jacked it up from the diff and ran it to 80 k's freewheeling and can't here it maybe it is a wheel bearing or just needs load up on back wheels before it is evident. Differential noise will be due to either pinion bearing wear, output (carrier) bearing wear or gear wear or misalignment. If left in too long, they lose their lubricating properties and heat, friction and whining ensue in the differential. 8800 miles 2014 GTS. I've recently purchased a 2014 VW Golf. While there is no help for our singing, we can help you diagnose the sounds coming from a differential gone bad. The noise started with the colder weather. This condition may occur while driving around 50 mph at constant speed, slight acceleration, or slight deceleration and may be caused by rear differential vibration transferring through the chassis and body. Difference between total noise and gear order, > 20 dBA here 2. Whining Differential or Transmission One of the symptoms most commonly associated with bad or failing differential or gear oil is a noisy transmission or differential. In some cases the noise is loud enough to drown out the radio in the vehicle. I only really notice it when I back off the gas. 2008 xc70 whining noise from front of rear diff Help, Advice, Owners' Discussion and DIY Tutorials on the third generation Volvo V70 wagon and XC70 crossover, and second generation S80. Rear axle bearings: ball or roller bearings that fit between the axles and the inside of the axle housing. Very common for AU to drop pinion bearings at as low as 40k. Quiet gear action is directly related to proper matching of gear surfaces. Even the tires are not designed for a quiet ride, but instead to put power to the ground on off road terrain. and when i let off my foot on gas pedal, i didn't hear any whining noise and when i let my foot on the gas pedal again, i can hear that noise again. I am set to do the front axle service this week. i'm relatively certain it ain't the diff however, i think it's the planetary gears in the trans. Either way if its diff or gearbox they will have to come out for a recon. Will the use of a thicker/heavier grade of oil, if such a thing exists, or alternatively oil additives that thicken your oil, make the drivetrain better and quieter?. Whining noise in the rear end without any odd feel to it ( such as a vibration in your hand on the wheel) is often a problem with the differential. I droped my car off at ford this morning for the recall job, and they recon that it is not common at all and that there is no additive that they have or can put int. I have a sort of whining noise in the engine bay in the vicinity of the alternator, water pump, power steering pump. As the gears wear, that whine can get louder as it resonates through the gears. Fill the differential case with a product called ROCKITE. I've had a noticeable (but not loud) whine under load at 50-70 mph for the last 10k miles or so. (2008 RAV4 Sport I4) I wanted to get a good thread with some COMPLETE information for the Rear Differential Noise that MANY of us have gone through and will go through. I know it isn't bearings because you can let off the accelerater and it stops, as soon as you reapply the accelerator it comes back. Re: Whining noise while driving? The "clicking" noise can only be heard on decel close to stopping. Sometimes, people confuse this with tire noise and ignore it. Will the use of a thicker/heavier grade of oil, if such a thing exists, or alternatively oil additives that thicken your oil, make the drivetrain better and quieter?. Be careful; there is no crush sleeve to take up the slack. What is Alternator Noise? Alternator noise is a high pitched whine caused by the car's electrical system. As others have said, check pinion bearing play, but I'd not count on a lot of success there. Sounds like rear diff bearing noise. The gears run hotter than normal during the break-in process and require two or three heat-cycles to ensure proper performance and life expectancy. dont have a issue with the 40mm lift here diff no whine,, agree if it whines at speed start the the diff centre it would be the rear, but find yourself a dirt road lock it up in 4wd and see if the sound is still there. I am leading towards the center support bearing, but have read other posts stating a bad center support bearing makes noise when letting off the gas and coasting. The tires develop a cupped tread wear pattern from this bouncing (or tramping). Please note that GM recommends NOT driving your car at wide open throttle for 300 miles because it could cause gear noise/whine. The rear end whine is pretty common in the manual 6-speed. Turning to the left I can make the noise go away. A while back I posted some questions about rear end noise. The jeep is the quadra-trac with all time 4wheel drive. So no oil can eliminate the noise. This video shows a classic example of BMW 1 series diff noise, whining on and off acceleration. Absolute gear order noise, ~37 dBA here 3. However, the subtle difference between the two can be identified, as tire noise varies with the kind of surface you are driving on, but rear differential noise doesn't change. It's only like $40 at Honda, or you can just easily do it yourself. Also gears that are not meshing properly can make a whining sound. Then reading many post of many people complaining about the "whine" I realised that I'm not the only one that has this issue. If you let off the throttle the whine almost stops. The techs confirmed the sound is coming from the diff and contacted Toyota. The transmission was supposedly rebuilt a couple of years ago. I have taken good care of the car since I bought it new. • "Rumbling or whirring" at speeds over 20 mph can be caused by worn carrier bearings. any help on this would be great cause it is really becoming a true annoyance. Powerlock differentials tend to whine more than non-Powerlock diffs, and they tend to fail more frequently. Its nothing to worry about and the reason why it's not audible in most road cars is that they use helical gears to keep the transmission whine to a minimum. c , just food for thought , hope you get rid of the whine cheers butane. 5 quarts in the tranny. The whine will be constantly present, but may change pitch or intensity. I bought a 4 year old Lincoln Convertible off a car lot. One of the symptoms that is most commonly associated with bad or failing differential or gear oil is a noisy transmission or differential. Some of the Avalanche guys were getting the rear diff's replaced, with GM quoting some poor machining on the differential. Also makes a whining noise. Well as far as I'm aware you essentially throw a banana inside the diff housing and the added thickness of the banana will stop the diff from whining. Can identify a small. The whining noise is there all the time. You may try to swap front and rear tires to see if the noise stays or moves to the front. My pickup went through 3 rear ends before they finally got the pattern correct. How differential works. This noise beagn about 10,000 miles and continues. 2006 D3 S8 5. Learn how to rebuild you Ford 8-inch rear differential in this article from Mustang Monthly Magazine. 7l 10 bolt rear end. The differential is the gear in the back of the truck that transfers the drive to the wheels. i just recently changed the diff fluid and added the additive as well. No noise in 1st,2nd or 3rd gear accelerating or decelerating in gear. I took my car to my dealer (which is also a high performance SRT shop) and they replaced the entire rear end after the tech and I took it for a spin and he heard it himself. The noise does not increase when turning the wheels at a stop. Absolute gear order noise, ~37 dBA here 3. At about 1000 miles I started to hear a whine from the rear. So no oil can eliminate the noise. In this Tech Tip video you'll learn about why your rear end or front end differential may be making noise upon deceleration, and what can be done. The pinion pilot shaft is a high-wear item and the leading cause of noise. ITS GONE!. Hey guys, I just recently changed my timing belt and after a few days of driving with the new belt I started noticing a whining noise coming from the timing belt area. Re: Whining/humming noise at highway speed Originally Posted by Truckian I've got an '87 hatch, and when I get up to around 55mph (though it does seem to vary a bit), there's this strange mid-high pitched whining/humming noise that sounds like it's coming from somewhere up front. It's causing the secondary to spin in P and N and make it hard to shift. If you hear a whine from the engine when turning the steering wheel, or if the steering wheel needs significant effort to turn, or if the fluid is black, it's time to change the power steering fluid. Whining noise IGOTACUMMINS is an online forum and community for all Cummins Turbo Diesel enthusiasts. However, GM has paid little attention to us and not provided us with a fix for this problem. This is a 50g tube of Gear oil additive. (2008 RAV4 Sport I4) I wanted to get a good thread with some COMPLETE information for the Rear Differential Noise that MANY of us have gone through and will go through. Mix it up thin enough to pour. This video shows a classic example of BMW 1 series diff noise, whining on and off acceleration. Some customers may complain about an abnormal noise from the rear of the vehicle that increases in volume as vehicle speed increases. The noise is NOT affected by engine load, coasting in neutral or hard on the throttle or even braking does not change it. I have a noisy front differential in my 2003 Subaru Outback LL Bean with 190K, and my car has been running like a dream for 15K miles and counting with no problems since I put it in. hello everyone my car started making a whining noise at about 60mph cant notice it any lower than that its not super loud and i cant hear is with the radio on i drive a 2004 wrx no mods except cat back exhaust. In city driving, you can hear it well and when you decelerate and come to a stop, the noise stops. In this Tech Tip video you'll learn about why your rear end or front end differential may be making noise upon deceleration, and what can be done. but this stuff is amazing! There's an additive in it that makes it cure extremely fast. [Archive] Z3 differential whining noise E36/7 Z3 (1996-2002) Very common problem. Gear Noise Upon Deceleration Need Help (Updated) O. Apply throttle and the sound gets quieter, speed up and the sound goes all together. What is causing the whining sound in my car engine? 2001 Honda CRV with about 68,000 miles on it. I have also put an LSD in which i thought might have caused the whine. If you are starting to see a second mark in the gears, the mesh has changed. If the whining noise while accelerating is loudest while taking a turn, the problem may lie in the power steering assembly. West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! Order before 4PM and most parts ship out the SAME DAY! Diagnosing Differential Problems. It would be an expensive fix so the mechanic is telling you to live with it. I have whine but perhaps not as much as you state. Just recently my transmission started whining. I purchased the car about 6 months ago, and a few months after that noticed a slight whining noise coming from the engine. it is not the actual diff making the noise, it is the nut on the pinion gear. Just drive it and it will break in more. Porsche 928: Why is My Transmission Whining? Many owners will experience a transmission whine during their ownership of the Porsche 928, but it can often be difficult to determine if there is a problem, or if it is just one of the idiosyncrasies of the 928 automatic transmission. If it whines when you're on the gas but goes away when you let off the gas, definitely sounds like a rear diff noise to me. Apply throttle and the sound gets quieter, speed up and the sound goes all together. Read your user's manual and I believe you'll find it says to change the differential fluid every 30k miles or so, which you should do, or risk damaging the differential. If it's there on acceleration, you're likely looking at worn ring and pinion. The rear differential drive pinion bearing, in LR2 models between 2008 and 2011, is known to deteriorate, causing an excessively loud humming or whining noise. The same with the diff housing, just a little sweating. Whining noise in 4WD (Differential Fluid) As previously mentioned, low differential oil or even old differential oil could be the cause of the differential emitting a loud whining or humming noise when 4WD is selected. I don't hear "any" type whine (maybe a "whirring" noise ) and I'm extremely sensitive about any noise, especially "whines. BMW 135i Differential Hum/Whine from BMW Ihaveone on Vimeo. When I turn right while driving I sometime hear a humming or whining noise. After light use for the first 15-20 miles, stop and let the differential cool before proceeding any further. 2 V10 Ceramic Brakes, Bang&Olufsen, DTV, DAB, Rear Camera, BT, TPMS, Soft Close, Auto Boot, AMI , 4 Zone AC, Home Link, All Electric Blinds, Fingerprint, Ski Hatch, Black Extended Leather, Heated Sport Seats, Alacantra, Carbon Trim inc Aluminium Pack 2. The nut should be tightened slowly until the bearings contact the races and then tightened just a little bit more. Just recently I have noticed some whining noise (not too loud) from the front end of my 2010 XC60 T6 AWD. Ever since the CTS-V was introduced in 2004, owners have reported rear differential problems and failures. It could be a worn pinion or a misalignment of some sort. The rear end has been whining for a little while and seems like its getting worse. Noise seems worse than the unit I took out which was leaking at all three yoke seals. And its not the CVT, when I replaced my clutch I started it up with the CVT cover off to look at the clutches operate and there was very little noise from the two clutches. when i pick the truck up and give it gas i don't hear it. # noisyDiff How to rebuild your BMW differential and stop it being noisy. Diff oil is a lot thicker than engine oil and specifically designed to withstand high pressure and temperature change. Changed mobil1 while i had it up to. GMC Yukon Denali Front/Rear Differential May Develop Noise Due to Worn Bearings - 112 reports. But, that noise isn’t good. I purchased a new one and when it's in I can hear a whining noise coming from the front diff. As others have said, check pinion bearing play, but I'd not count on a lot of success there. It only makes this noise when the van is moving, no matter what gear you are in. It's not a tire noise as I get the same noise with both my winter and summer tires. I can't locate which one. MG MGB Technical - Rear Axle Noise I'm trying to decide whether to do anything about the noisy rear axle in my BGT. It’s impossible to say for sure without looking at your specific car audio setup, but your audio system may be suffering from a classic ground loop problem. While there I mentioned that there is a mild whining noise in the drivetrain when driving at around 75-85km/h. If you jack up one wheel and spin it, (leaving the other on that axle stationary, on the ground) you will hear the normal noises from the spider gears. It also made the noise when I was backing into my carport when turning the steering wheel. a whining noise is NOT the same as a whistle that occurs only after a bit of driving. Whining noise in drivetrain (1999 Chevrolet Silverado 1500) i have a whining noise in the drive train when going 30 mph or higher all fluids are ok , trans shifts ok 4 wd works ok ,can't figure out what is making the noise. My Colorado recently has developed a whine from 60mph-68mph. They take a lot of abuse and are generally pretty rugged. Noise: Howl while decelerating (gears previously quiet) Cause: Loose pinion bearing preload. Having posted on Benzworld several times about an annoying whining noise coming from the rear, I finally got up the courage and replaced the rear Differential. but this stuff is amazing! There's an additive in it that makes it cure extremely fast. 30 problems related to differential unit have been reported for the 2004 Cadillac CTS. I read some posted remarks on this subject and did read mixed postings. I hear something when coasting with foot on pedal, as soon as i take my foot off, slight whiny sort of noise, stops - cant be the diff as it would still whine after taking foot off, i figured its the probably fuel pump - figured the noise was normal as it only happens whilst coasting with pedal pushed -. That whining noise derives from the viscous coupler, and is normal. Diff oil is a lot thicker than engine oil and specifically designed to withstand high pressure and temperature change. hi just bought a hiace :) its an 07 with low milage ,but to me the rear diff is noticably loud and can be heard at about 5mph. A common problem with the factory pinion bearing on the rear diff is that it loses the hard facing and develops a whine like you have described. It sounds like a wheel bearing. The whine is there regardless of road surface (smooth or chip seal), and the smoother the road surface, the more you can hear it because there is less competing noise. In the case of a rear end, the noise can be a humming sound, a growl, or even a knock. It appears that Ford motor company is aware of this problem but are not willing to repair this issue for free. Hello, I have a whining noise coming from the rear of the truck. One way to quiet it down is to swap the OEM fluid for some sythetic gear fluid like Redline Differential Fluid, that is what I plan to do if it gets worse anyway. I don't know much about the Qubo. Audi A4 - whine. I just recently acquired a very good condition 2007 4Runner Limited fully loaded with 131k on it, new rubber, new brakes and rotors, etc. Whining noise in 4WD (Differential Fluid) As previously mentioned, low differential oil or even old differential oil could be the cause of the differential emitting a loud whining or humming noise when 4WD is selected. I'm using 75w-90 Severe Gear in the trans, I just don't remember if it had a whining noise like that before. Some of the folks that were bothered by it switched out the rear-end gear oil and said the noise is less using RP 75W-140 Synthetic Gear Oil or Wolf's Head 85W-140 Gear Oil. It increases in whine as i accelerate until the car changes gears. A noisey differential isn't "normal". So now I know it's coming from the transfer case back anyway. Thought it was the CVT the 1st time I heard a noise. i have searched the forum and do not really find any inherant problems with the diffs on Legends. The noise sounds like it is coming from the rear in the middle - so diff i guess? Noticed it during town driving a couple of weeks ago, then after crossing a steep drainage channel out bush it seems to have gotten louder. So no oil can eliminate the noise. If bad bearings could make a whining sound, then it possibly could be the diff side bearings also. No noise when the car was idling. Above 60km/h the noise. And once the noise starts, it tends to drive the owners of those vehicles cuckoo. They drove it, checked the fluid level and did what they called a diagnostic check. My rear differential is shot, but it is just making a bunch of noise. Ive got a 2010 Xterra SE, AT,with almost 100k on the clock, and there is a whining noise coming from the rear differential, while keeping speed or accelerating. Demonstration of Noise Differential National Center for Asphalt Technology | Noise , Pavement Technologies On-board microphones capture the noise differential as a vehicle transitions from an asphalt rubber surface (ARFC) to a portland cement concrete pavement (PCCP) and then back to smooth and quiet asphalt. If the vehicle is low on transmission fluid, it can also cause a whining sound, accompanied by gear shifting problems and other habitual issues. It only does it when I am on the throttle, and stops when I get off. Remove the fill plug,. Overfilling it won't solve anything. The rear end has been whining for a little while and seems like its getting worse. It's pretty loud and definitely wasn't there a couple of weeks ago. Is the whine noise present mostly between 0 - 40 mph? • YES - Continue to step 2. Diff oil is a lot thicker than engine oil and specifically designed to withstand high pressure and temperature change. Its not a loud whine but its noticeable when coasting, it's not the wheel bearings as it only does it when coasting and the noise doesn't change when going round corners etc. The ring and pinion gears can make a whining noise without a roaring noise being present from the bearings. If I let off the throttle, it disappears, but then barely tapping the gas it makes the noise again. There could also be a noisy bearing in the differential. Some symptoms of a bad differential on a Mercedes-Benz are whine, rumbling, humming, growling, noise while turning, vibration, loud clanks or grinding at low. The differential serves a key function, which is to prevent wheel hop during tight turns while still delivering the engine's power to the wheels. No additive will fix the whine. Is there a way to tell apart noise from worn tranny bearings versus a worn differential in a FWD car that has a manual transmission and an open, non-hypoid diff? Would a noisy transmission bearing be noisy at any car speed in any gear while under load? Would a noisy differential be noisy only at a specific car speed under load. The best way to describe what it sounds like is when you have a set of loud tires that when you are driving down the hyway, make a high humming noise. Dont despair, it's only a diff noise. The whining noise goes away once im cruising on the open roads, but is there going up thru the gears at the lights ect, low in the revs. I changed the diff oil and tranny fluid this weekend to see if that would help-didn't. I have a E class W211 with 75,000 Km (47,00 miles) and the Differential Drive Gear Box is giving a whining noise. It appears that Ford motor company is aware of this problem but are not willing to repair this issue for free. Truck has the locking rear diff (which got alot of use in this winter's snow so far). It is actually challenging to find the root cause of whining noise when accelerating but these common causes will give you the heads-up. It goes down the road just fine but the whining in rear end is enough to drive you crazy. My truck did have the M34 Recall done back in 2013. It’s impossible to say for sure without looking at your specific car audio setup, but your audio system may be suffering from a classic ground loop problem. axle assembly to repair an axle whine/hum. Repeat this process two or three times. Anyway, despite its flaws I still enjoy my truck. But less than differential parts. I have changed the rear diff fluid and it is still doing it. While riding home from work today, I noticed a pretty loud whining noise I believe is coming from the trans. But when I took the tech for a test drive and had him listen he said that the noise I hear is different from what he hears. Mix it up thin enough to pour. The rear end has been whining for a little while and seems like its getting worse. WE BOUGHT a VY automatic V8 Holden Crewman last year and have covered 10,000km. Differential working principle. It just got louder now. In city driving, you can hear it well and when you decelerate and come to a stop, the noise stops. Gear whine, bearing noise and clunking are common rear differential noises that should be a concern to vehicle owners. Question about Driveline/Rear Differential Whine So I've been reading threads all over the Toyota/4Runner forums about driveline noise, whining, whirring, grinding, humming etc. 160,000 miles There is whining noise under acceleration, cruise and deceleration at speeds over 20mph. I drive an MY07 S3 which is totally standard. BMW 135i Differential Hum/Whine from BMW Ihaveone on Vimeo. Will the use of a thicker/heavier grade of oil, if such a thing exists, or alternatively oil additives that thicken your oil, make the drivetrain better and quieter?. A while back I posted some questions about rear end noise. The harder you load the differential, the bearing gets loaded too and the noise subsides. If the fluid level in NOT low, then the diff and or bearking need attention. My truck did have the M34 Recall done back in 2013. Subject is a 2000 Dodge Dakota that has a very whiny differential (8. Low fluid levels are usually the cause of the irregular wear. BMW 135i Differential Hum/Whine from BMW Ihaveone on Vimeo. I have started to notice a slight whine from what I can only think is the Haldex unit. Check out our guide to Identifying Bad Axle Noises. In talking to a Nissan tech, he reported seeing failures happening around 60K. Even the tires are not designed for a quiet ride, but instead to put power to the ground on off road terrain. It appears that Ford motor company is aware of this problem but are not willing to repair this issue for free. The noise was noticeable at low and moderate speeds while driving, and sounded like a loud whine or hum depending on vehicle speed. These slots at the inside of the axle tubes allow oil in the tubes to drain directly into a trough at the bottom of the "pumpkin" area, bypassing the side bearings. In city driving, you can hear it well and when you decelerate and come to a stop, the noise stops. A good contact pattern should be centered on the tooth. Average repair cost is $3,200 at 70,000 miles. How to reduce noise during differential pulse voltammetry? Effect of working electrode area? I am trying to run DPVs using a GCE/glassy carbon working electrode on Ruthenium in 0. It really hasn't gotten any louder/worse during that time (more or less a year).